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RADIANT FACET DIAGRAM
SQUARE RADIANT FACET DIAGRAM
RADIANT DIAMOND
RADIANT FACET DIAGRAM SQUARE RADIANT FACET DIAGRAM RADIANT DIAMOND

CUT GRADE DETERMINANTS FOR RADIANT CUT DIAMONDS
CUT CLASSES
1A
1B
2A
2B
3A
3B
4A
4B
Ideal
Premium
International fine trade
US domestic average
below average
Table %
60-65.5%
59-68%
58-69.5%
57-72%
56-74%
53-76.%
50-78.%
>78%
<50%
Crown Height %
12-15.%
11-16% 10-16.5%
9-17.2% 8-18.0%
7-19.5% 6-20.5% <6%
>20.5%
Girdle thickness
Word descriptions and percentages.
V. Thin to Sl. Thick
(0.4%-4.5%) or
Thin to Thick (1%-5.5%)
V.Thin to Thick(0.4%-5.5%)
Very Thin to Very Thick
(0.4% to 7.0%)
Extremely thin to
Extremely thick
(0.0% to >7.0%)
Total Depth %
60-65%
58-69% 57-74%
56-78%
53-80%
>80%
<53%
Polish/Symmetry
Not a primary determining factor.
Excellent to Good
Good or Fair Poor to Fair
Square range
Length : Width ratios
Preferences only
0.95-1.05
Rectangular range
Length : Width ratios
Preferences Only
1.5-1.75
1.49-1.26
1.76-1.99
> Class 3
< Class 3
 

Rýchly Kontakt

Ing. Anton SCHWARTZ - STAFIN s.r.o.
Bratislava, Žilina, Košice
Slovenská republika
tel. +421 907 996 790
e-mail : schwartz@schwartz.sk

Štatistiky

Počet zobrazení obsahu : 481768

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